Detecting Network Address Translation & Proxy Use
modernized and C99 compliant port of p0f (Passive OS fingerprinting)
Passive OS fingerprinting support for rspamd
Floodspark Counterespionage Firewall (CEF) helps you record and block or honeypot reconnaissance or otherwise illegitimate traffic. CEF is like a web application firewall (WAF) but protects against reconnaissance.
p0f with Python.
Purely passive OS and application fingerprinting system
Network Tools
p0f v3 with impersonation spoofing, written in Python - Accurately guess the OS of a packet with passive fingerprinting.
TCP Fingerprinting of email senders.
Multi-protocol passive fingerprinting library: TCP/HTTP (p0f-style) + TLS (JA4-style) analysis in Rust
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